I agree with BigBulls,you have so many mid range guns you might try a caliber at the bottom or top of the spectrum.You might like a 25-06 or a 22-250 for varmits or go the other way and try a 35 whelen or .338 win mag or Ultra mag,you might even wan't a 375 H&H.If you don't have any lever guns you might wan't to try them out,a short lever 44 mag or 41 mag are fun to shoot and to plink with and you still have a good deer gun,or try the 444 marlin,450 marlin or the 45-70,or the new marlin in 480 Ruger/475 Linebaugh,if you can find one.